Connecticut and the region

Endangered and Threatened Plants of Connecticut, from the Department of Environmental Protection.

Go Botany (from the New England Wild Flower Society) is a great resource for information on the plants of New England.

Connecticut Notable Trees pages list historical trees and the largest of a species in Connecticut. Notable Trees is a joint project of the Connecticut College Arboretum and the Connecticut Botanical Society.

NY-NJ-CT Botany Online has a variety of botanical information for the greater New York metropolitan region. The site is especially valuable for its extensive list of botanically interesting natural areas.

Bedrock Map of Connecticut shows in detail the bedrock that underlies each part of the state, along with descriptions of the bedrock types. The map is on the Talcott Mountain Science Center web site, which has other interesting information on Connecticut's geology.

Image Collections

Fungi Images on the Net provides links to 1600 photographs of fungi.

Weed Images from Rutgers University is very helpful for identifying weeds.

Weed Images from University of Massachusetts is also very helpful for identifying weeds.

Ferns et al. of New England covers a large fraction of our area's ferns and fern allies.

Image Collection of the USDA's Plants National Database has several thousand photographs. It allows searches by name or by several other criteria.

Vascular Plant Image Gallery from Texas A&M University is a very large collection of plant photos. Searches by plant name or family only.

Plant Databases

The USDA's PLANTS Database has a distribution map for virtually every plant growing in the U.S.

Flora of North America is a partially completed guide to plants in the U.S. and Canada. Plants are described in detail, with taxonomy, distribution maps, and drawings.

Gymnosperm database has detailed descriptions of over 1000 gymnosperms, such as conifers and cycads. Some plants are pictured.

General Botany

Tree of Life is a family tree for all living things, starting at the level of kingdoms.

Glossary of botanical terms comes from the Missouri Botanical Garden.

Major biomes of the world provides an introduction to the world's ecological regions.

Seaweed page from the National University of Ireland, Galway provides information on seaweed, some of it aimed at the general public, some for algae experts.

Gardening with Native Plants

University of Connecticut's Plants Database has detailed information on trees, shrubs, and vines for the landscape in the northeast, including many native plants.

Wild Ones Handbook is a guide to natural landscaping, emphasizing plants of the plains region.

Invasive Plants

Invasive Plant Atlas of New England is a terrific source of information on invasive plants: identification, distribution, means of spread, etc.

Connecticut Invasive Plant Working Group is an organization dedicated to management of and research on invasive plants in the state.

The National Plant Conservation Alliance's Weeds Gone Wild and the Center for Invasive Species and Ecosystem Health both provide lists of invasive plants and information on how to manage them.


United States Fish and Wildlife Service Endangered Species Information page has information on all plants and animals listed by the federal government as endangered or threatened.

Leafsnap, a field guide to trees designed for mobile devices.

Native Plants of New England Facebook Group is a place to ask questions or chat about plants native to New England.

Dictionary of Botanical Epithets and Botanary allow you to look up the meaning of the Latin or Greek in scientific names of plants.

SciStarter connects interested members of the public to science projects they can participate in. The site includes hundreds of research projects, including some botany projects, such as monitoring the time of first bloom of native plants and tracking invasive species.

Wildflower Coloring Pages and Books has drawings of wildflowers that can be printed out for coloring.

Other Organizations

In Connecticut

Aton Forest

Avalonia Land Conservancy

Bartlett Arboretum

Berlin Land Trust

Branford Land Trust

Burlington Land Trust

Chester Land Trust

Connecticut Butterfly Association

Connecticut College Arboretum

Connecticut Entomological Society

Connecticut/Westchester Mycological Association

Darien Land Trust

Deep River Land Trust

Essex Land Conservation Trust

Friends of Goodwin Forest

George Safford Torrey Herbarium at UConn

Granby Land Trust

Haddam Land Trust

Highstead Arboretum

Joshua's Tract Conservation and Historic Trust

Killingworth Land Conservation Trust

Madison Land Conservation Trust

New Roxbury Land Trust

New England Native Plant Initiatives

Northern Connecticut Land Trust

Old Lyme Land Trust

Peabody Museum Herbarium at Yale University

Shelton Land Conservation Trust


American Fern Society

Botanical Club of Cape Cod and the Islands

Botanical Society of America

Brooklyn Botanic Garden

Eagle Hill Institute

Flora of New Jersey Project

Long Island Botanical Society

The Nature Conservancy

New England Botanical Society

Native Plant Trust

New York Botanical Garden

North American Native Plant Society

Rhode Island Wild Plant Society

Torrey Botanical Society

The Wild Ones